Paco of Occupied Northern Virginia - "It looks like that policeman gave the fellow a juicy one, right on his ugly map. And he seems to have enjoyed doing it. Bit of all right, I say "

Sonny Fabich - "Giving them PLENTY OF TRUNCHEON! Good to see - it’s a pity our gutless coppers won’t do the same"

Winston Smith of VRWC Pty Ltd - "Excellent stuff, sir! These protesting idiots are behaving as if they are above the law. Right up until they cross the line and meet the cold hard wall of reality. Then some w***er says they have the right to behave in this fashion. I know a fifth columnist and their supporter when I see one, jail the bloody lot"

Daniel Lewis - "Yep. And when arrested, they will always scream at the top of their lungs, 'Ow, you are breaking my arm, stop it, stop it please' for the later benefit of Youtube. Naturally what happened before the arrest is missed. You know, because the camera wasn’t on yet. It’s straight out of the Indymedia playbook and pretty pathetic. If you are going to get into a punchup, you should at least be hard enough to cop it."

Ann J. - "The presence of the media, particularly the photographers, did a lot to encourage the mayhem."

Mitch of Massachusetts, USA - "I believe the euphemism for this type of police work is “informal sanctions.” In other words, it is not worth anyone’s time or trouble to cuff and book the clown, so the police find a way of discouraging any repetition of the behavior without creating a lot of paperwork. It all happens off the books, so to speak, so the recreant is properly admonished but does not have a permanent criminal record. Assuming the procedure leaves him with as many teeth as he started with, he should be grateful. It works wonders when administered wisely."

Carpe Jugulum - "....hope he followed up with a suitable bodyshot.....just to be sure. It’s always good to see a fellow enjoying his work."

They must be really getting off on all those scenes of women being beaten by truncheon-wielding police and security forces in the streets of Tehran.